Liquid Ring Vacuum Pumps


Vacuum solutions


Camlin Fine Science, Aarti Industries

Liquid Ring Vacuum Pumps Description

Liquid Ring Vacuum Pumps are designed to efficiently handle the pumping of wet mixtures and even slugs of liquid. These pumps use a rotating impeller to create a liquid ring that helps to seal and support the pumping action, making them well-suited for handling liquids. Liquid Ring Vacuum Pumps are capable of pulling down to extremely low pressures, such as 4 Torr (5.3 mbar a). However, their low-pressure performance is limited by the vapor pressure of the sealing liquid, which can be water, oil, or other process liquids. These pumps are widely used in a variety of industries for tasks such as vacuum filtration, evaporation, and distillation. They are known for their durability and ability to handle harsh environments, making them a reliable choice for demanding applications.
  • Liquid ring vacuum pumps are mechanical devices used to generate a vacuum by using a rotating impeller to draw in and compress a liquid, typically water or oil.
  • They are well-suited for pumping wet mixtures and even slugs of liquid, making them ideal for use in a variety of industrial and scientific applications.
  • These pumps can achieve vacuum levels as low as 4 Torr (5.3 mbar a), although their low-pressure performance may be limited by the vapor pressure of the sealing liquid.
  • Liquid ring vacuum pumps are available in single-stage and double-stage design options, depending on the desired flow rate and ultimate vacuum pressure.
  • These pumps are known for their durability and low maintenance requirements, as they are designed to run 24/7 for years without the need for maintenance.
  • Liquid ring vacuum pumps are available in a variety of materials of construction, including cast iron, stainless steel 304, and stainless steel 316, to suit the needs of different applications. 
  • Simplistic in design, rugged in construction
  • Built to run in the most severe of industrial conditions
  • Unique design allows pump to operate flooded, without damage
  • Flat power curve over entire vacuum range prevents motor overload
  • No contact between operating components in the casing
  • Ideally suited for pumping wet mixtures
  • Low-pressure performance is limited by the vapour pressure of the sealing liquid as ( water, oil, or process liquids)
  • Complete engineered system solutions available: instrumentation, controls, piping & valves
  • Self-contained liquid recovery & recirculation are available
  • Double mechanical seals available in some models to meet API Piping Plan Requirements
  • Chemical & Pharmaceutical Process Plants
  • Extruders
  • Solvent Distillation/Vapour Recovery Sterilization,
  • Degasifiers,
  • Freeze Drying,
  • Vapour Coating,
  • Gas Compression
  • Distillations
  • Drying
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Liquid ring

Liquid Ring Vacuum Pumps find applications in:

  • Chemical and Pharmaceutical
  • Deaeration
  • Solvent Distillation
  • Processing
  • Extruders Crystallizers
  • Autoclaves
  • Vapor Recovery
  • Central Vacuum Systems
  • Evaporators

Variants in Liquid Ring Vacuum Pumps

Two-Stage Liquid ring Vacuum Pump

Single Stage Liquid ring Vacuum Pump

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Frequently Asked Questions

A liquid ring vacuum pump is a mechanical pump that uses a rotating impeller and a liquid sealant to create a vacuum. It is commonly used in applications such as papermaking, wastewater treatment, and chemical processing.
A liquid ring vacuum pump consists of a rotating impeller inside a cylindrical chamber. The impeller is partially submerged in a liquid sealant, typically water. As the impeller rotates, it creates a liquid ring that traps and compresses pockets of air, which are then expelled through an exhaust port, creating a vacuum.
Liquid ring vacuum pumps are relatively simple and reliable, and they can be used to create a wide range of vacuum levels. They are also relatively compact and can be easily installed in various configurations. They are also able to handle liquids and gases, making them suitable for use in a variety of applications.
Yes, there are a few special considerations to keep in mind when using a liquid ring vacuum pump: Lubrication: Liquid ring pumps require a continuous supply of liquid sealant, such as water or oil, to operate. It is important to use the correct type and amount of sealant and to replace it at the recommended intervals. Contamination: Liquid ring pumps can contaminate the system they are used in if not properly maintained. It is important to follow the manufacturer’s recommendations for cleaning and maintenance to prevent contamination. Operating temperature:Liquid ring pumps have a limited operating temperature range. It is important to ensure that the pump is not operated outside of this range, as doing so can damage the pump and shorten its lifespan.
When selecting a liquid ring vacuum pump, it’s important to consider factors such as the type and volume of the fluid being pumped, the required vacuum level, and the overall cost of the pump. It’s also important to choose a pump from a reputable manufacturer with a proven track record of quality and reliability.

Economy Process Solutions Pvt. Ltd is a leading provider of vacuum and process solutions in India since 1926. Our commitment to quality and innovation has made us a trusted choice for businesses globally.

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